Turn your Vac-U-Lock or Merci Fuck Machine into a bottom. This sturdy aluminum adapter attaches to the base of your favorite Main Squeeze strokers to your Vac-U-Lock Fuck Machine — just mount the case on the adapter base, attach to the machine, and start the party. This product can be used alone or in combination with the Extender Set.Features Strong, Lightweight Aluminum Adapter Attaches Main Squeeze Strokers to Vac-U-Lock Fuck Machine Also Fits Man Squeeze and OptiMale Hard-Case Strokers Approximate Product Dimensions:Width/Diameter: 2 in. (5.1 cm)